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ARS Home Office of Communications Images Photos Jul10





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Image Number D1821-3 For a study assessing the contribution of skin pigmentation, sun exposure, and diet to vitamin D status, graduate student Melissa Zerofsky uses a reflectance spectrophotometer to measure a volunteer’s skin pigmentation at the ARS Western Human Nutrition Research Center in Davis, California. Photo by Peggy Greb.  640 pixels wide: (d1821-3.jpg)   Please visit our Image Gallery


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